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5 Written Questions

5 Matching Questions

  1. cholesterol
  2. lipid
  3. peptide bond
  4. starch
  5. monosaccharide
  1. a The simplest carbohydrate, active alone or serving as a monomer for disaccharides and polysaccharides. Also known as simple sugars, the molecular formulas of monosaccharides are generally some multiple of CH20
  2. b A steroid that forms an essential component of animal cell membranes and acts as a precursor molecule for the synthesis of other biologically important steroids
  3. c the covalent bond between two amino acid units, formed by condensation synthesis
  4. d A storage polysaccharide in plants consisting entirely of glucose
  5. e One of a family of compounds, including fats, phospholipids, and steroids, that are insoluble in water

5 Multiple Choice Questions

  1. A reaction in which two molecules become covalently bonded to each other through the loss of a small molecule, usually water; also called dehydration reaction
  2. A sugar (monosaccharide) or one of its dimers (disaccharides) or polymers (polysaccharides).
  3. Three fatty acids linked to one glycerol molecule
  4. The form of native DNA, referring to its two adjacent polynucleotide strands wound into a spiral shape
  5. A double-stranded, helical nucleic acid molecule capable of replicating and determining the inherited structure of a cell's proteins

5 True/False Questions

  1. proteinA structural polysaccharide of an amino sugar found in many fungi and in the exoskeletons of all arthropods


  2. monomerThe subunit that serves as the building block of a polymer


  3. polysaccharideA polymer of up to over a thousand monosaccharides, formed by condensation reactions


  4. nucleotideThe building block of a nucleic acid, consisting of a five-carbon sugar covalently bonded to a nitrogenous bas and a phosphate group


  5. riboseA type of nucleic acid consisting of nucleotide monomers with a ribose sugar and the nitrogenous bases adenine (A), cytosine (C), guanine (G), and uracil (U); usually single-stranded; functions in protein synthesis and as the genome of some viruses


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